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how to check the 'contribution' of each predictor in a linear regression

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cgo 2018-11-19

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回答： Star Strider 2018-11-19

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I have linear regression model, say with 5 predictors,

. I wanted to know how we can perform tests regarding the 'contribution' of each predictor.

Does matlab have a function that tests all possible subsets of predictors and outputs the error?

Thanks

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Star Strider 2018-11-19

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You are describing a stepwise multiple linear regression. Seee the documentation on the stepwiselm (link) function and its friends for details.

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